Is 1600 not a bad score in exchange for little to no preparation?

I know there are many faults in this question, as I most definitely should of prepared more and earlier (I spent maybe a total of 1.5 to 2 hours of reviewing) and 1600 is already low in itself, but I wanted to cancel and reschedule my test date (my school finals laid perfectly in the week before and after the test) and my parents wouldn’t pay for the cancellation fee. I did the best in CR (560), Math (530) and the lowest in Writing (510) (which is surprising because I was very confident after completing the writing section!), but considering I didn’t prepare much and most of my preparation was managing the time given for each section, is it safe to say my score isn’t too bad and I can (hopefully) significantly improve it in the fall? Oh yeah, I’m also from Canada, so the June 6 time error didn’t affect me. Thanks, and any answer is appreciated!

Your score is a little above average. The question you have to ask yourself is if you could have done better.

Whether 1600 is good or bad really depends on the schools your looking at and the score you are trying to obtain.
1600 is not too bad for no preparation but it’ll take a lot of work to bring that to over 2200s, if you’re applying to top schools, in about half a year.
Good Luck!